Welt-shaping machine.



PATENTED MAY 1 L 1907'.

L. GODDU.

WELT SHAPING MACHINE.

APPLICATION FILED JAN. 11. 1899.

a a i wh Z f zigifi L .parts.

LOUIS GODDU,

OF WINCHESTER, iiASSAcEUSETTS, ASSIeNoE To GODDU SEWING MACHINE COMPANY, OF PORTLAND, MAINE, A CORPORATION or MAINE.

WELT-SHAPING MACHINE.

Specification of Letters Patent.

Patented May 14, 1907.

Application filed January 11, 1899. Serial No. 701.834.

lowing description, in connection with the accompanying drawings, is a specification,

like letters on the drawlngs representing like The present invention relates to machines for shaping waits and more particularly to a machine for cutting a stitch receiving groove in one surface of the welt and for simultaneously beveling or skiving the edge of the welt ad'acent to the stitch receiving groove 1 e object of the invention is to roducev a simple machine in which the welt Wlll be supported in a manner best adapted for the proper action. of the grooving and skiving nives and wherein'as it passes beneath the knivesit will be held under tension, thus insuringa clean out and the proper operation of the machine.

To the above endthe consists of the devices an devices which will be hereinafter described resent invention and claimed.

- plan View of the machine shown in Fig. 1,

ig. 3 is a much enlarged detail showing the clamping or tension devices and the skiving knife. +ig. 4 is an'enl'arged'detail in the dotted line a: Fig. 3, looking to the right showing the grooving knife and skivin knife. Fig. 5 is an enlargedsectional detai -of the tension clam acting on the welt. vFig. 6 shows the wet with the knives'in osition to cu't'the stitch receivin groove an bevel the edge of the welt, and ig. 7 shows a portion of the finishedwelt.

reference will be used to designate corresponding parts throughout the specification and drawings.

- In the. drawing A designates the head or frame which in practice willbe preferably supported ona suitable column A whichrises from the floor. The head Ahas two laterally rejecting arms A, A and anoverhanging lgnife sup ort a, which is preferably formed integral with the head A and projects knife a and t e skiving combinations of forwardly therefrom as clearly shown in Fig. 4 of the drawing. The knife su port a sup orts the grooving knife a which as clearly shown in Fig. 4 of the drawing are inclined toward each other and'are secured to the knife support a by means of clamping plates 0. and a which are grooved to receive the shanks of the knives and which are held to the knife support a by the clamping screws a and a.

Supported by the frame or head A at the front thereof, and beneath the over-hanging' knife support a, is a block 0 to. which .is secured by means of a set screw 0 amain welt support 0 said support 0 having a curved upper face over which the welt is drawn and being vertically adjustable on the block 0 whereby to adjust said support with relation to the auxiliary welt support. One edge of the work support a is provided with a verti cal guide flange c which constitutes one side of a guide way for the welt as it passes through the machine. j

Located to one side of'the main weltesupport 0 is an auxiliary welt su port which is preferably formed by a roller I) mounted to turn on' a stud b, the roller being so positioned with relation to the main support 0 so as to cause the curved upper surface of the main support 0 to merge into and be continued by the periphery of the roll I)";

At the rear of the head A there is a tubular extension or bearing 61 in which is mounted a rock shaft 01 shown in dotted lines Figs. 1, 2 and 3. At its forward end the rock shaft d is provided with an armd fixedly secured thereto and to'which is secured by a Set.

screw d a clamping or tension bar (1, said bar (1* having on its under Side an edge plate (1 forming the other side of. the guide way for the welt. The bar d is 'adjustably connected to the arm; d so that the uide-d may be adjusted toward and away om the uide cin accordance with the varying widt s of welt which are passed through the machine.

The clam ing bar d is held in engagement with the we t w and engages said welt in advance ,of the oint of action of the grooving. and skiving ives, said bar being forced down by means of a spring e, one end of which is-connected'with an arm 11 secured to -.From the fore oing the auxiliary support b between the guides of the knives thereon.

-A.s'shown in the drawing, the machine is arranged to receive a welt wound on a reel or supiort, one end of which is passed over the wor support and beneath the knives and secured to a winding shaft whereby when the windin shaft is revolved the welt will be drawn and wound upon the winding shaft.

j The reel is shown at f and is mounted on a stud f held in the arm A of the head A. The welt passes from the reel under the clamp d and over the main support 0 and (I -and c',-and its eiid is placed in a slot formed in theend of a shaft 9 mounted in suitable bearings in the arm A of the head A.

- The shaft g'ma be revolved by a crank or any other s'uitab e means, but as shown in the drawing it is provided with a fast pulleyit having along central sleeve on which is faced a loose pulley h, a suitable belth ing used to rotate the fast ulley and shaft and thus draw the welt t rough the machine, so that the'grooving toolmaycut' the groove wand the knife a bevel or skive the ed e adjacent to the groove as at 'w Inste'a of'mounting the. welt on reel as shown in the 'drawin the welt coil-may be supported in a suitab e holder in the manner to permit its turning therein and the withdrawal of the welt from the outer sideof the coil as shown in Fig. 1

It will be noted hat the axes of the reel f and the shaft 9 are located below-the plane of the surface of the main work support a" and that byreason of'the fact that the welt is drawn from the reel from the under side of the coil upwardly and is-wound n the :shaft 9 so "that its angle or line of draft as it passes from the knives is being constantly neath the knives and from the reel increased that the welt is buckled or bent as it were where it passes over the work support e and held under tension which results 1n the proper presentation of the-:welt in the best manner for the operationof-the knives.

Having descrlbed the construction and a mode of o eration of my invention, I claim as new am desire to secure by Letters Patent of the United States 1. In a machine for grooving and skiving welts, the combination with a welt support having a curved-face over which the welt passes, of -means for bending a welt over the Welt support and grooving and driving knives arranged to act on the stretched 11pper surface and edge of a welt respectively, substantially asdescribed.

2. In a machine for grooving and skiving welts, the combination with a main welt support having a curved face, of .means for ending a welt over the welt support an auxiliary rotary support located a aeent to the main welt support andgrooving and skiving knives arranged to act on the 'u per surface and edge of the welt respe 've y, substantially as described.

3. In a machinefor grooving and skiving welts, the combination with the grooving and skiving'knives, a welt support provided with a guide flange, a sprin pressed tension bar provided with a comp ementary guide flange, and means for adjustin the tension bar so as to adjust the guide ange carried therebytoward and from the guide flange on the work support, substantially as described.

4. In a machine for grooving and skiving welts, the combination with the over-hang ing knife carrier, and grooving and skiving knives adjustabl supported therein, a welt support adjusta 1y mounted beneath the over-hanging knife carrier, and a swinging spring pressed; arm carrying a tension bar to act on the welt to maintain the tension thereon during the operation of the ma-' chine, substantially as described. a

In testimony whereof,- I have signed myname to this specification, in the-presence of two subscribing witnesses.

, .LoUIs GODDU. -Witnesses:

'GEo. W. GREGORY, M. A. DUNN. 

